Function: levDistance()

Returns the Levenshtein distance between two strings. This is the number of character edits (inserts, deletions or substitutions) that would need to be made to change one string into the other. This function is useful in fuzzy string matching.

Syntax

levDistance(string1, string2)

Argument	Type	Description
string1	String	String, of any length. Note that "null" is treated as an empty string.
string2	String	String, of any length. Note that "null" is treated as an empty string.

Examples

levDistance("ABC", "ABC")

returns 0

levDistance("ABC", "AXC")

returns 1

levDistance("ABC", "ABCDE")

returns 2

levDistance("", "ABCDE")

returns 5

levDistance(_NULL, "ABCDE")

returns 5

HELP60

levDistance

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Function: levDistance()

Syntax

Examples

See Also

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